n.

1. 反射；回響；反射光，回聲[U]
   the reflection of a sound wave

   聲波的反射

2. 映象，倒影[C]
   The deer gazed at its reflection in the forest pool.

   鹿凝視著它倒映在森林水池裡的影子。

3. 反映；表達，抒發[C]
4. 容貌酷似的人；惟妙惟肖的事物[C]
   The girl is a reflection of her mother.

   那女孩長得和她母親一模一樣。

5. 深思，熟慮；反省[U][（+on/upon）]
   After long reflection we decided to buy the house.

   經過很長一段時間的慎重考慮，我們決定買下那所房子。

6. 想法，意見[C][（+on/upon）][+that]
7. 非議；（對名譽，品格）有損的事[C][（+on/upon）]
   Children's bad behavior is often a reflection on their parents.

   小孩的壞品行常常有損父母的名譽。

   Your accusation of my lying is a reflection on my reputation.

   你說我撒謊，這有損我的名譽。

n.

1. the fact or phenomenon of light, heat, sound, etc. being reflected.
   ▸something reflected or an image so formed.
2. a thing bringing discredit.
3. serious thought or consideration.
   ▸a considered idea, expressed in writing or speech.
4. Mathematics  the symmetry operation of inverting something with respect to a plane.